In an examination average marks obtained by the girls of a class is 85 and the average marks obtained by the boys of the…

There are five boxes in a cargo hold. The weight of the first box is 200 kg and the weight of the second box is 20% more…

The average of 20 students is 12 years, if the teacher's age is included, average increases by one. The age of the teach…

The average age of all the students of a class is 18 years. The average age of boys of the class is 20 years and that of…

A man started his journey from Lucknow to Kolkata, which is 200 km, at the speed of 40 kmph then he went to Banglore whi…

3 years ago the average of a family of 5 members was 17 years. A baby having been born, the average age of the family is…

The average height of 30 boys out of a class of 50 is 160 cm. If the average height of the remaining boys is 165 cm, the…

The average age of seven boys sitting in a row facing North is 26 years. If the average age of the first three boys is 1…